full-disclosure - Xfree86 video buffering?

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Message-ID: <200502231620.03099.seclists@stratitec.com>
From: seclists at stratitec.com (defiance)
Subject: Xfree86 video buffering?

I would do a quick visit to slashdot after your nighly porn session. Then 
she'll never know :)

Seriously though, I think this has to do with stuff getting left in the video 
memory. I don't think X flushes it properly. Or I could have no idea what I'm 
talking about.

-defiance
http://stageofbattle.org

On Wednesday 23 February 2005 15:08, KF (lists) wrote:
> Recently I have noticed that after shutting down my machine or rebooting
> my X-windows will briefly flash an image of whatever I was doing when I
> rebooted the machine or logged out.
>
> As an example if I was browsing porn at night in mozilla just before I
> clicked "K->Logout...->Reboot Computer" in KDE, the next morning when my
> Girlfriend turns my computer on she gets a quick 2 second shot of my
> porn  just before the KDM login screen.
>
> What causes this? Can it be prevented? I can certainly see sensitive
> data potentially being leaked via this quirk.
> -KF
>
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